Display panel, pixel repair method and display device

Abstract

A display panel, a pixel repair method of a display panel and a display device are provided. The display panel includes a plurality of light-emitting elements, a plurality of pixel driving circuit rows, a plurality of repair connection lines, a plurality of repair data lines, a plurality of repair driving circuits, an active layer and a first adapting structure. The plurality of repair driving circuits are arranged along the second direction, and a repair driving circuit is correspondingly provided with at least two repair data lines. In a direction perpendicular to the plane of the substrate of the display panel, the first adapting structure at least partially overlaps the two repair data lines.

What is claimed is: 
     
         1 . A display panel, comprising:
 a substrate;   a display area and a non-display area at least partially surrounding the display area;   a plurality of light-emitting elements and a plurality of pixel driving circuit rows, wherein the display area includes the plurality of light-emitting elements and the plurality of pixel driving circuit rows, the plurality of pixel driving circuit rows include a plurality of pixel driving circuits arranged in a first direction; and one of the plurality of pixel driving circuits is electrically connected to at least one light-emitting element of the plurality of light-emitting elements;   a plurality of repair connection lines, a plurality of repair data lines and a plurality of repair driving circuits, wherein one of the plurality of pixel driving circuit rows is correspondingly provided with at least one of the plurality of repair driving circuits and at least one of the plurality of repair connection lines, in a direction perpendicular to a plane of the substrate, the pixel driving circuit row and the repair driving circuit at least partially overlap with a same repair connection line of the plurality of repair connection lines;   an active layer and a first adapting structure, wherein the first adapting structure is located on a side of the active layer away from the substrate, the repair driving circuit includes a data writing transistor, the data writing transistor includes a channel and a first electrode located in the active layer, and the first adapting structure is electrically connected to the first electrode of the data writing transistor; and   a plurality of the repair driving circuits arranged in a second direction, wherein one repair driving circuit of the plurality of driving circuits is correspondingly provided with at least two repair data lines of the plurality of repair data lines, the second direction intersects the first direction, in the direction perpendicular to the plane of the substrate, the first adapting structure at least partially overlaps with two repair data lines of the plurality of repair date lines.   
     
     
         2 . The display panel according to  claim 1 , further comprising:
 a plurality of scan lines, wherein the pixel driving circuit row and the repair driving circuit at least partially overlap with at least a same scan line of the plurality of scan lines.   
     
     
         3 . The display panel according to  claim 1 , wherein:
 the plurality of repair data lines include a first repair data line and a second repair data line;   the first adapting structure includes a first sub-connection part and a second sub- connection part that are electrically connected;   the repair driving circuit is electrically connected to the first repair data through the first sub-connection part; and   in the direction perpendicular to the plane of the substrate, the second sub-connection part at least partially overlaps with at least one second repair data line.   
     
     
         4 . The display panel according to  claim 3 , wherein:
 the first sub-connection part and the second sub-connection part are at least partially disposed in different layers.   
     
     
         5 . The display panel according to  claim 3 , wherein:
 the first repair data line is arranged in a layer different from at least one of the first sub- connection part and the second sub-connection part; and   the second repair data line is arranged in a layer different from at least one of the first sub-connection part and the second sub-connection part.   
     
     
         6 . The display panel according to  claim 1 , comprising:
 a plurality of repair driving circuit groups arranged in the second direction;   each of the plurality of repair driving circuit groups includes at least one repair driving circuit;   repair driving circuits in a same repair driving circuit group of the plurality of repair driving circuit groups is electrically connected to a same repair data line of the plurality of repair data lines respectively through a corresponding first adapting structure; and   repair driving circuits in different repair driving circuit groups of the plurality of repair driving circuit groups are electrically connected to different repair data lines of the plurality of repair data lines through corresponding first adapting structures.   
     
     
         7 . The display panel according to  claim 1 , wherein the non-display area comprises:
 the repair driving circuit and a dummy pixel driving circuit located on a side of the repair driving circuit away from the pixel driving circuit row.   
     
     
         8 . The display panel according to  claim 1 , wherein:
 the display area includes the repair driving circuit, and the non-display area includes a dummy pixel driving circuit.   
     
     
         9 . The display panel according to  claim 8 , comprising:
 a driving circuit layer located on one side of the substrate, wherein the driving circuit layer includes the plurality of pixel driving circuits, the plurality of repair driving circuits and the dummy pixel driving circuit, and the light-emitting element is located on a side of the driving circuit layer away from the substrate; and   in the direction perpendicular to the plane of the substrate, one of the plurality of repair driving circuits located in the display area at least partially overlaps with at least one of the plurality of light-emitting elements.   
     
     
         10 . The display panel according to  claim 1 , comprising:
 a peripheral driving circuit, wherein each of the plurality of repair data lines at least partially overlaps with the peripheral driving circuit in the direction perpendicular to the plane of the substrate.   
     
     
         11 . The display panel according to  claim 10 , wherein:
 the non-display area includes the plurality of repair driving circuits and the peripheral driving circuit; and   the peripheral driving circuit is located on a side of the plurality of repair driving circuits away from the pixel driving circuit row.   
     
     
         12 . The display panel according to  claim 1 , comprising:
 a first area, wherein in the first area, numbers of pixel driving circuits in two adjacent pixel driving circuit rows of the plurality of pixel driving circuit rows in the second direction are different; and   in the first area, the plurality of repair driving circuits at least partially overlap in the second direction.   
     
     
         13 . The display panel according to  claim 1 , wherein:
 at least two repair data lines of the plurality of repair data lines are all located in a same layer.   
     
     
         14 . The display panel according to  claim 1 , wherein:
 in the direction perpendicular to the plane of the substrate, a projected area of a pixel driving circuit of the plurality of pixel driving circuits is same as a projected area of a repair driving circuit of the plurality of repair driving circuits.   
     
     
         15 . The display penal according to  claim 1 , further comprising:
 a light-emitting control line, a power supply voltage line, a first scan line, a second scan line, a third scan line, a first reset voltage line, and a second reset voltage line,   wherein:   the repair driving circuit of the plurality of repair driving circuits also includes a driving transistor, a first reset transistor, a second reset transistor, a threshold compensation transistor, a first light-emitting control transistor, a second light-emitting control transistor and a first storage capacitor;   a first electrode of the first light-emitting control transistor is electrically connected to the power supply voltage line, a second electrode of the first light-emitting control transistor is electrically connected to a first electrode of the driving transistor, and a gate of the first light-emitting control transistor is electrically connected to the light-emitting control line;   a first electrode of the first reset transistor is electrically connected to the first reset voltage line, a second electrode of the first reset transistor is electrically connected to a gate electrode of the driving transistor, and a gate electrode of the first reset transistor is electrically connected to the first scan line;   a first electrode of the threshold compensation transistor is electrically connected to a second electrode of the driving transistor, a second electrode of the threshold compensation transistor is electrically connected to the gate electrode of the driving transistor, and a gate electrode of the threshold compensation transistor is electrically connected to the second scan line;   a second electrode of the data writing transistor is electrically connected to the first electrode of the driving transistor, and a gate electrode of the data writing transistor is electrically connected to the second scan line;   a second electrode of the first storage capacitor is electrically connected to the power supply voltage line, and a first electrode of the first storage capacitor is electrically connected to the gate of the driving transistor;   a first electrode of the second light-emitting control transistor is electrically connected to the second electrode of the driving transistor, a gate electrode of the second light-emitting control transistor is electrically connected to the light-emitting control line, a gate electrode of the second light-emitting control transistor is electrically connected to the light-emitting control line, a second electrode of the second light-emitting control transistor is located on the active layer and is electrically connected to a second adapting structure located on a side of the active layer away from the substrate, and in a direction perpendicular the plane of the substrate, the second adapting structure at least partially overlaps with the repair connection line; and   a first electrode of the second reset transistor is electrically connected to the second reset voltage line, a gate electrode of the second reset transistor is electrically connected to the third scan line, a second electrode of the second reset transistor is located in the active layer and is electrically connected to a third adapting structure located on a side of the active layer away from the substrate, and in a direction perpendicular to the plane of the substrate, the third adapting structure at least partially overlaps with the repair connection line.   
     
     
         16 . The display panel according to  claim 15 , wherein:
 the first reset voltage line is electrically connected to the second reset voltage line; or   the first reset voltage line is multiplexed as the second reset voltage line.   
     
     
         17 . The display panel according to  claim 15 , wherein:
 the second adapting structure is electrically connected to the repair connection line.   
     
     
         18 . The display panel according to  claim 15 , wherein:
 the repair driving circuit also includes a second storage capacitor, wherein a first electrode of the second storage capacitor is electrically connected to the power supply voltage line, a first electrode of the second reset transistor is electrically connected a reset voltage line, and a first electrode of the second storage capacitor is electrically connected to the power supply voltage line.   
     
     
         19 . The display panel according to  claim 15 , wherein:
 the repair driving circuit also includes a repair control transistor, wherein a first electrode of the repair control transistor is electrically connected to a second electrode of the second reset transistor, a second electrode of the repair control transistor is electrically connected to a second electrode of the second light-emitting control transistor and the repair connection line, and a gate electrode of the repair control transistor is electrically connected to the light-emitting control line.   
     
     
         20 . A pixel repair method of a display panel, comprising:
 providing a display panel,   wherein the display panel includes:   a substrate;   a display area and a non-display area at least partially surrounding the display area;   a plurality of light-emitting elements and a plurality of pixel driving circuit rows, wherein the display area includes the plurality of light-emitting elements and the plurality of pixel driving circuit rows, the plurality of pixel driving circuit rows include a plurality of pixel driving circuits arranged in a first direction; and one of the plurality of pixel driving circuits is electrically connected to at least one light-emitting element of the plurality of light-emitting elements;   a plurality of repair connection lines, a plurality of repair data lines and a plurality of repair driving circuits, wherein one of the plurality of pixel driving circuit rows is correspondingly provided with at least one of the plurality of repair driving circuits and at least one of the plurality of repair connection lines, in a direction perpendicular to a plane of the substrate, the pixel driving circuit row and the repair driving circuit at least partially overlap with a same repair connection line of the plurality of repair connection lines;   an active layer and a first adapting structure, wherein the first adapting structure is located on a side of the active layer away from the substrate, the repair driving circuit includes a data writing transistor, the data writing transistor includes a channel and a first electrode located in the active layer, and the first adapting structure is electrically connected to the first electrode of the data writing transistor; and   a plurality of the repair driving circuits arranged in a second direction, wherein one repair driving circuit of the plurality of driving circuits is correspondingly provided with at least two repair data lines of the plurality of repair data lines, the second direction intersects the first direction, in the direction perpendicular to the plane of the substrate, the first adapting structure at least partially overlaps with two repair data lines of the plurality of repair date lines;   determining a defective pixel;   disconnecting an electrical connection between a light-emitting element of the defective pixel and a corresponding pixel driving circuit; and   electrically connecting the light-emitting element of the defective pixel with a corresponding repair connection line.   
     
     
         21 . The pixel repair method according to  claim 20 , wherein the plurality of repair data lines include a first repair data line and a second repair data line, the repair driving circuit is electrically connected to one first repair data line, and in a direction perpendicular to the plane of the substrate, the repair driving circuit at least partially overlaps with one second repair data lines, further comprising:
 determining a first defective pixel and a second defective pixel;   disconnecting electrical connections between light-emitting elements of the first defective pixel and the second defective pixel and corresponding pixel driving circuits and electrically connecting all the light-emitting elements of the first defective pixel and the second defective pixel to the corresponding repair connection lines;   disconnecting an electrical connection between a repair driving circuit corresponding to the second defective pixel and the first repair data line; and   electrically connecting a repair driving circuit corresponding to the second defective pixel to a second repair data line such that the repair driving circuit corresponding to the first defective pixel receives the signal from the first repair data line and the repair driving circuit corresponding to the second defective pixel receives data signal provided by the second repair data line.   
     
     
         22 . A display device, comprising:
 a display panel,   wherein the display panel includes:   a substrate;   a display area and a non-display area at least partially surrounding the display area;   a plurality of light-emitting elements and a plurality of pixel driving circuit rows, wherein the display area includes the plurality of light-emitting elements and the plurality of pixel driving circuit rows, the plurality of pixel driving circuit rows include a plurality of pixel driving circuits arranged in a first direction; and one of the plurality of pixel driving circuits is electrically connected to at least one light-emitting element of the plurality of light-emitting elements;   a plurality of repair connection lines, a plurality of repair data lines and a plurality of repair driving circuits, wherein one of the plurality of pixel driving circuit rows is correspondingly provided with at least one of the plurality of repair driving circuits and at least one of the plurality of repair connection lines, in a direction perpendicular to a plane of the substrate, the pixel driving circuit row and the repair driving circuit at least partially overlap with a same repair connection line of the plurality of repair connection lines;   an active layer and a first adapting structure, wherein the first adapting structure is located on a side of the active layer away from the substrate, the repair driving circuit includes a data writing transistor, the data writing transistor includes a channel and a first electrode located in the active layer, and the first adapting structure is electrically connected to the first electrode of the data writing transistor; and   a plurality of the repair driving circuits arranged in a second direction, wherein one repair driving circuit of the plurality of driving circuits is correspondingly provided with at least two repair data lines of the plurality of repair data lines, the second direction intersects the first direction, in the direction perpendicular to the plane of the substrate, the first adapting structure at least partially overlaps with two repair data lines of the plurality of repair date lines.